RC19020A072GN2#KB0

Overview

The RC19020A072GN2#KB0 is a PCIe Gen7 compliant clock buffer manufactured by Renesas Electronics. It features one differential input and twenty LP-HCSL outputs, supporting frequencies up to 400 MHz. The device operates on a single 3.3V supply (2.97V to 3.63V) within an industrial temperature range of -40°C to +105°C. Packaged in a 72-VFQFPN (10x10 mm) case, it provides ultra-low additive jitter and reduced in-to-out delay performance. Key functional attributes include power down tolerance, flexible startup sequencing, automatic clock parking, and open-drain loss-of-signal indication.

Feature Summary

• PCIe Gen1 through Gen7 compliance with backward compatibility
• Ultra-low additive phase jitter for improved design margin
• Supports both source-terminated and double-terminated loads
• Integrated SMBus interface for configuration and write protection

Applications

• PCI Express Gen7 endpoint and root complex designs
• High-performance server and storage systems
• Communication infrastructure timing networks

Procurement Notes

Verify the specific ordering suffix #KB0 against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure the selected variant matches the required 72-VFQFPN footprint and moisture sensitivity level for the intended manufacturing process.

Selection Notes

Select this component when designing for PCIe Gen7 standards requiring high fan-out ratios. Confirm that the system power budget accommodates the typical power consumption and that the 3.3V core voltage aligns with the platform's power rails. Verify thermal requirements for the 10x10mm package under maximum operating conditions.

Part Context

This part belongs to the RC190xxA family of clock buffers designed for high-speed serial interfaces. It serves as a direct replacement or upgrade path for legacy devices like the DB2000Q, offering enhanced signal integrity features and additional control pins such as SBI_OUT for daisy-chaining multiple clock generators.

Replacement Considerations

The RC19020A072 is pin-compatible with the DB2000Q/DB2000QL plus variants. Designers migrating from these older components should verify that the new LOS indication and SMBus features are correctly integrated into the existing board layout.